must be above reproach: This is a key requirement for a church leader and public representative (see 3:7, 10; 5:7; 6:14; Titus 1:6–7; 2:8).
the husband of but one wife (or be married only once; literally be the husband of one wife; also in 1 Timothy 3:12): This suggests, but does not require, a married man. It focuses on pure character and loyalty in marriage. This was not always assumed in the surrounding culture. It probably does not forbid marrying again after a spouse's death and does not address polygamy specifically (literally, "marriage to many") (see 5:9). See also 3:12; Titus 1:6; compare 1 Timothy 5:9.
hospitable (literally, "friend of the stranger"): This means to make a practice of hosting people in one's home. It was an important duty and virtue respected in ancient times. Traveling Christians would often stay with fellow Christians (see 2 John 1:10–11; 3 John). Additionally, first-century AD churches often met in private homes (see Colossians 4:15; Philemon 1:2).